They are also able to expel some gas, making this method slow and unreliable, at best. · discover how baking soda works as a mice killer , its speed, effectiveness, and safe application methods for pest control. · baking soda can be effective against certain pests, such as insects, but not rodents. · no, baking soda does not kill mice instantly. Learn the truth behind this popular diy remedy and whether it’s an effective solution for rodent problems. · generally, baking soda is a helpful and budget-friendly pest control option most of the time—but not with mice and rodents, according to jeff schumacher, owner of all-safe pest & termite. In summary, while baking soda can potentially kill mice and rats, it is not the most effective method of control, particularly in severe infestations. This leads to internal blockages or ruptures and ultimately death. While baking soda can produce gas when it reacts with stomach acid, mice are unlikely to consume a lethal dose. Mice need to ingest an enormous amount of baking soda for it to be effective—and its an inhumane way to go. · when ingested, it interacts with stomach acid to create carbon dioxide, a gas that mice can’t expel. · wondering if baking soda really kills mice ? Combining various approaches and consulting with pest control experts can lead to more successful outcomes. Baking soda kills mice fast, making it a practical option for quick rodent control.